Critter ID help

[mr.lordacan]

Does anyone know what this is? It’s attached to the back of my bubble coral, so I guess I didn’t notice it during my weekly cleaning (it’s towards the back wall). It’s pretty big. Not sure what it would be? I’m guessing a sponge, but that seems hopeful (I’m assuming it’s bad)?

 

[Reefing102]

Looks like a pineapple sponge but would need a white light pic to verify

 

[mr.lordacan]

Looks like a pineapple sponge but would need a white light pic to verify

 

[mr.lordacan]

Looks like a pineapple sponge but would need a white light pic to verify

Here’s a photo!

 

[AydenLincoln]

Yup pineapple sponge very common and harmless! I have a lot in my tank.

 

[mr.lordacan]

Yup pineapple sponge very common and harmless! I have a lot in my tank.

Thanks ayen and reefing!